Twitter photo sharing service TweetPhoto is encouraging developers to use its platform by giving them a way to earn some money. The service pays developers by the number of photos that its users upload via the TweetPhoto API.

The number of available web search APIs has been reduced in recent months; Google and Yahoo have shut down a number of their web search APIs. This is the first part of a two-part article covering the state of web search APIs. The second part highlights search APIs provided by Google and Microsoft.

Along with the rapid growth of video APIs, the marketplace of photo-related APIs continues to expand rapidly. Since we looked at 36 Photo APIs earlier this year, we've added nearly a dozen new ones, and there are now 47 APIs tagged "photo" in our web service directory.